Where do you draw the line, is mental illness medical or caused by society?
If a Jew was mentally ill when they were being persecuted in Nazi Germany, it would be hard to draw the line.
Black men are a lot more likely to be sectioned in mental health hospitals. Perhaps that's linked to racism being more prevalent towards black men in the UK?
Autistic people are significantly more likely to kill themselves and die young than other people. Is that genetically inevitable or because society drives people to it?